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handle better devices which do not support feature calls

This commit is contained in:
Daniel Pavel 2012-11-08 00:28:40 +02:00
parent 8db1ce97a8
commit b2db0706c6
1 changed files with 1 additions and 1 deletions
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2
app/receiver.py
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@ -37,7 +37,7 @@ class _FeaturesArray(object):
except _api._FeatureNotSupported: except _api._FeatureNotSupported:
self.supported = False self.supported = False
else: else:
count = _base.request(handle, self.device.number, _pack('!BB', index, 0x00)) count = None if index is None else _base.request(handle, self.device.number, _pack('!BB', index, 0x00))
if count is None: if count is None:
self.supported = False self.supported = False
else: else: